<template>
  <div class="demo">
    <h2>{{component.__sourceCodeTitle}}</h2>
    <div class="demo-component">
      <component :is="component" />
    </div>
    <div class="demo-actions">
      <Button @click="hideCode"
              v-if="codeVisible">隐藏代码</Button>
      <Button @click="showCode"
              v-else>查看代码</Button>

    </div>
    <div class="demo-code"
         v-if="codeVisible">
      <pre class="language-html"
           v-html="html" />
    </div>
  </div>
</template>

<script lang="ts">
import Button from '../lib/Button.vue'
import 'prismjs'
import 'prismjs/themes/prism.css'
import { computed, ref } from 'vue'
const Prism = (window as any).Prism

export default {
  components: {
    Button,
  },
  props: {
    component: Object,
  },
  setup(props) {
    const html = computed(() => {
      return Prism.highlight(
        props.component.__sourceCode,
        Prism.languages.html,
        'html'
      )
    })
    const showCode = () => {
      codeVisible.value = true
    }
    const hideCode = () => {
      codeVisible.value = false
    }
    const codeVisible = ref(false)
    return {
      Prism,
      html,
      codeVisible,
      showCode,
      hideCode,
    }
  },
}
</script>

<style lang="scss" scoped>
$border-color: #1089ed;
.demo {
  border: 1px solid $border-color;
  border-radius: 6px;
  margin: 16px 0 32px;
  > h2 {
    font-size: 20px;
    padding: 8px 16px;
    border-bottom: 1px solid $border-color;
  }
  &-component {
    padding: 16px;
  }
  &-actions {
    padding: 8px 16px;
    border-top: 1px dashed $border-color;
  }
  &-code {
    padding: 8px 16px;
    border-top: 1px dashed $border-color;
    > pre {
      line-height: 1.1;
      font-family: Consolas, 'Courier New', Courier, monospace;
      margin: 0;
    }
  }
}
</style>